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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QPAINTERVIDEOSURFACE_P_H
#define QPAINTERVIDEOSURFACE_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <qtmultimediawidgetdefs.h>
#include <QtCore/qsize.h>
#include <QtGui/qimage.h>
#include <QtGui/qmatrix4x4.h>
#include <QtGui/qpaintengine.h>
#include <qabstractvideosurface.h>
#include <qvideoframe.h>
QT_BEGIN_NAMESPACE
class QGLContext;
QT_END_NAMESPACE
QT_USE_NAMESPACE
QT_BEGIN_NAMESPACE
class QVideoSurfacePainter
{
public:
virtual ~QVideoSurfacePainter();
virtual QList<QVideoFrame::PixelFormat> supportedPixelFormats(
QAbstractVideoBuffer::HandleType handleType) const = 0;
virtual bool isFormatSupported(const QVideoSurfaceFormat &format) const = 0;
virtual QAbstractVideoSurface::Error start(const QVideoSurfaceFormat &format) = 0;
virtual void stop() = 0;
virtual QAbstractVideoSurface::Error setCurrentFrame(const QVideoFrame &frame) = 0;
virtual QAbstractVideoSurface::Error paint(
const QRectF &target, QPainter *painter, const QRectF &source) = 0;
virtual void updateColors(int brightness, int contrast, int hue, int saturation) = 0;
virtual void viewportDestroyed() {}
};
class Q_AUTOTEST_EXPORT QPainterVideoSurface : public QAbstractVideoSurface
{
Q_OBJECT
public:
explicit QPainterVideoSurface(QObject *parent = 0);
~QPainterVideoSurface();
QList<QVideoFrame::PixelFormat> supportedPixelFormats(
QAbstractVideoBuffer::HandleType handleType = QAbstractVideoBuffer::NoHandle) const;
bool isFormatSupported(const QVideoSurfaceFormat &format) const;
bool start(const QVideoSurfaceFormat &format);
void stop();
bool present(const QVideoFrame &frame);
int brightness() const;
void setBrightness(int brightness);
int contrast() const;
void setContrast(int contrast);
int hue() const;
void setHue(int hue);
int saturation() const;
void setSaturation(int saturation);
bool isReady() const;
void setReady(bool ready);
void paint(QPainter *painter, const QRectF &target, const QRectF &source = QRectF(0, 0, 1, 1));
#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1)
const QGLContext *glContext() const;
void setGLContext(QGLContext *context);
enum ShaderType
{
NoShaders = 0x00,
FragmentProgramShader = 0x01,
GlslShader = 0x02
};
Q_DECLARE_FLAGS(ShaderTypes, ShaderType)
ShaderTypes supportedShaderTypes() const;
ShaderType shaderType() const;
void setShaderType(ShaderType type);
#endif
public Q_SLOTS:
void viewportDestroyed();
Q_SIGNALS:
void frameChanged();
private:
void createPainter();
QVideoSurfacePainter *m_painter;
#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1)
QGLContext *m_glContext;
ShaderTypes m_shaderTypes;
ShaderType m_shaderType;
#endif
int m_brightness;
int m_contrast;
int m_hue;
int m_saturation;
QVideoFrame::PixelFormat m_pixelFormat;
QSize m_frameSize;
QRect m_sourceRect;
bool m_colorsDirty;
bool m_ready;
};
#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_1_CL) && !defined(QT_OPENGL_ES_1)
Q_DECLARE_OPERATORS_FOR_FLAGS(QPainterVideoSurface::ShaderTypes)
#endif
QT_END_NAMESPACE
#endif
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